*2022/07/12 14:22:22.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2022/03/06 17:58:18.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 23 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 222CE3F2 NUMBER OF CHANNELS : 23 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 135 157 2 Bottle_Number n/a 1 23 3 Bottle:Firing_Sequence n/a 1 23 4 Pressure:CTD dbar 5.8 3275.6 5 Temperature:CTD deg_C_(ITS90) 1.6614 7.5379 6 Salinity:CTD PSS-78 32.0905 34.6449 7 Sigma-t:CTD kg/m^3 25.1061 27.7381 8 Transmissivity:CTD:650 %/m 53.9 60.5 9 Transmissivity:CTD:530 %/m 83.6 96.5 10 Oxygen:Dissolved:CTD:Volume ml/l 0.28 6.96 11 Oxygen:Dissolved:CTD:Mass µmol/kg 12 303.3 12 Fluorescence:CTD:Seapoint mg/m^3 0.44E-01 0.832 13 Salinity:Bottle PSS-78 34.2856 34.6422 14 Flag:Salinity:Bottle n/a 15 Oxygen:Dissolved:Bottle:Volume ml/l 0.262 6.95 16 Oxygen:Dissolved:Bottle:Mass µmol/kg 11.4 302.8 17 Flag:Oxygen:Dissolved:Bottle n/a 18 Nitrate_plus_Nitrite:Bottle µmol/l 9.19 45.77 19 Flag:Nitrate_plus_Nitrite:Bottle n/a 20 Phosphate:Bottle µmol/l 0.994 3.264 21 Flag:Phosphate:Bottle n/a 22 Silicate:Bottle µmol/l 7.67 179.96 23 Flag:Silicate:Bottle n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I 0 2 -99 ' ' 3 I I 0 3 -99 ' ' 3 I I 0 4 -99 ' ' 7 F ' ' 1 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 9 F ' ' 4 7 -99 ' ' 9 F R4 4 8 -99 ' ' 6 F ' ' 1 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 7 F ' ' 2 11 -99 ' ' 6 F ' ' 1 12 -99 ' ' 8 F ' ' 3 13 -99 ' ' 9 F R4 4 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 8 F R4 3 16 -99 ' ' 6 F ' ' 1 17 0 ' ' 3 NQ C ' ' 18 -99 ' ' 7 F R4 2 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' 8 F R4 3 21 0 ' ' 3 NQ C ' ' 22 -99 ' ' 7 F R4 2 23 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2022-001 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : P12 EVENT NUMBER : 38 LATITUDE : 48 58.48000 N ! (deg min) LONGITUDE : 130 39.76000 W ! (deg min) WATER DEPTH : 3233 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0550 LOCATION : Mid-ship ! custom item *COMMENTS Sample Number 145: OXY:Bottle - analyzed with incorrect flask ID. Value recalculated with correct flask volume. Sample Number 153: Bottle Number 19 - top cap was not sealed. Analysis methods: ----------------- Salinity samples were collected in 200 ml type ll glass bottles with disposable nylon inserts and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab on a Guildline 8400B Salinometer standardized with IAPSO standard seawater 21 - 49 days after collection. For details on duplicate analysis see document 2022-001_SAL.pdf. Oxygen samples were analyzed at sea using an automated Winkler titration System (Metrohm Dosimat model 876 and a UV light source and detector with a 365nm filter controlled by LV02_876 software designed and constructed by Scripps Institution of Oceanography) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). For details on duplicate analysis see document 2022-001_OXY.pdf. Nutrient samples were collected in plastic tubes and quick frozen in aluminum blocks stored in a -20C freezer. For samples 400 dbar and deeper a second set of samples were collected and stored cool for silicate analysis. All samples were returned to the Institute of Ocean Sciences and they were analyzed using an Astoria-Pacific Analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke and Whitney. Salinity corrections were applied to Silicate data where Salinity:CTD values < 25 psu. SILcorrected = SILuncorrected [1+((-0.003)*(32-Sal:CTD))] For precision and duplicate analysis see document 2022-001_NUT.pdf. Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -80C prior to analysis. Samples were extracted in 90% acetone at -20C for 24 hours and analyzed on a Turner Trilogy 7200-000 fluorometer calibrated with commercially pure chlorophyll a standard (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen et al 1965). Chlorophyll samples were analyzed at IOS 12 weeks after the cruise. Variability is assessed as the CV (std dev / mean*100). Flags and comments apply to chlorophyll values only. Chlorophyll values ranged from 0.03-8.21 µg/l in 82 samples. Average CV for this cruise was 2.49% from 23 duplicates, with 1 duplicate pair having a CV > 10% and 0 duplicate pairs having a CV > 30%. Our average dataset CV is 3.89% for 2013 - 2021 so the overall quality of this dataset is good. For details on duplicates see file 2022-001_CHL.pdf. References: 1. Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., and Strickland J.D.H. 1965. Fluorometric Determination of Chlorophyll. J.du Cons. Intl. Pour l’Epl. De la Mer. 30:3-15. 2. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 3. Culberson, C.H. 1991. Dissolved oxygen. WOCE Hydrographic Programme Operations and Methods (July 1991). 15pp. 4. Barwell-Clarke, J. and Whitney, F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. Data Processing Notes: ---------------------- Transmissivity, Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. There were 2 WetLabs CStar transmissometers in use during this cruise: Transmissometer:CTD:650 refers to sensor #1185DR (650nm - red) Transmissometer:CTD:530 refers to sensor #1883DG (530nm - green) For comparison with other Institute of Ocean Sciences cruises, note that the transmissometer wavelength is 650 nm unless otherwise stated. NOTE: While the Fluorescence:CTD data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples, particularly for casts far from shore. It is recommended that users check extracted chlorophyll values where available. There were problems with spiking in the Fluorescence:CTD and Oxygen:Dissolved:CTD data during downcasts, but not during the window around bottle firing. For details on the processing see the report: 2022-001-proc.pdf. $REMARKS Quality flags have the following significance: ---------------------------------------------------------------------------------- 0 = Acceptable measurement with no header comment. 1 = Sample for this measurement was collected but not analyzed. Sample lost. 2 = Acceptable measurement with header comment. 3 = Questionable measurement (probably good). 4 = Poor measurement (probably bad). 5 = Measurement not reported (bad). 6 = Mean of replicate measurements. 7 = Manual chromatographic peak measurement. 8 = Irregular digital chromatographic peak integration. 9 = Sample was planned for this measurement from this bottle but was not collected. ----------------------------------------------------------------------------------- $END !-1-- 2- 3- --4--- ---5---- ---6---- ---7---- --8-- --9-- --10-- --11- ---12-- ---13--- 14 ---15-- --16- 17 --18-- 19 ---20-- 21 --22-- 23 !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Trans Oxygen Oxyge Fluores Salinity Fl Oxygen: Oxyge Fl Nitrat Fl Phospha Fl Silica Fl !le_ tt tt re:CTD ure:CTD :CTD CTD missi missi :Disso n:Dis cence: :Bottle ag Dissolv n:Dis ag e_plus ag te: ag te: ag !Numb ~u ~u vity: vity: lved: solve CTD: ~o ed: ~ed:B ~o _Nitri ~o Bottle ~o Bottle ~o !er mb en CTD: CTD: CTD: d:CTD Seapoin tt Bottle: ottle tt te: tt tt tt ! er ce 650 530 Volume :Mass t le Volume :Mass le Bottle le le le !---- -- -- ------ -------- -------- -------- ----- ----- ------ ----- ------- -------- -- ------- ----- -- ------ -- ------- -- ------ -- *END OF HEADER 157 23 23 5.8 7.3558 32.0914 25.1063 53.9 83.6 6.96 303.3 0.392 -99.0000 0 6.950 302.8 0 9.22 0 0.995 0 10.31 0 156 22 22 10.7 7.3521 32.0905 25.1061 53.9 83.6 6.96 303.2 0.484 -99.0000 0 6.950 302.8 6 9.19 0 0.994 0 10.35 0 155 21 21 25.5 7.3153 32.1065 25.1237 54.1 84.0 6.93 302.1 0.832 -99.0000 0 6.936 302.2 0 9.35 0 0.996 0 10.25 0 154 20 20 50.6 7.2831 32.3391 25.3110 57.5 90.5 6.84 298.2 0.695 -99.0000 0 6.855 298.6 0 10.31 0 1.055 0 7.67 0 153 19 19 75.0 7.5379 32.6327 25.5067 58.8 92.9 5.59 243.4 0.248 -99.0000 0 5.624 244.9 3 16.03 3 1.380 3 17.50 3 152 18 18 100.8 7.2256 33.4733 26.2112 59.7 94.8 3.95 172.0 0.062 -99.0000 0 3.959 172.3 0 25.80 0 1.861 0 32.90 0 151 17 17 125.3 6.8762 33.7242 26.4565 59.6 94.7 3.54 154.2 0.057 -99.0000 0 3.551 154.5 0 28.66 0 1.987 0 39.67 0 150 16 16 150.1 6.5746 33.7743 26.5362 59.6 94.6 3.45 150.3 0.055 -99.0000 0 3.461 150.6 0 29.66 0 2.053 0 43.48 0 149 15 15 175.1 6.3616 33.8062 26.5891 59.6 94.6 3.22 140.2 0.056 -99.0000 0 3.205 139.4 0 30.93 0 2.148 0 47.50 0 148 14 14 201.1 6.1186 33.8291 26.6383 59.7 94.7 2.95 128.4 0.055 -99.0000 0 2.965 129.0 0 31.94 0 2.254 0 51.57 0 147 13 13 250.2 5.8030 33.9003 26.7340 59.7 94.6 2.18 94.7 0.052 -99.0000 0 2.177 94.7 0 36.12 0 2.531 0 61.36 0 146 12 12 300.9 5.6158 33.9412 26.7892 59.7 94.7 1.76 76.6 0.052 -99.0000 0 1.752 76.2 0 37.80 0 2.676 0 67.80 0 145 11 11 400.5 5.0369 34.0008 26.9047 60.1 94.8 1.20 52.0 0.051 -99.0000 0 1.202 52.3 2 41.04 0 2.891 0 80.39 0 144 10 10 601.2 4.0056 34.1370 27.1248 60.5 96.3 0.57 24.9 0.050 -99.0000 0 0.570 24.8 0 44.71 0 3.120 0 109.10 0 143 9 9 801.4 3.5312 34.2844 27.2896 60.5 96.2 0.30 13.1 0.051 34.2856 0 0.288 12.5 0 45.64 0 3.225 0 128.87 0 142 8 8 1000.9 3.2244 34.3736 27.3901 60.5 96.2 0.28 12.0 0.051 34.3736 0 0.262 11.4 0 45.76 0 3.250 0 140.43 0 141 7 7 1249.4 2.7669 34.4538 27.4957 60.5 96.2 0.40 17.5 0.050 34.4548 6 0.381 16.6 0 45.77 0 3.264 0 154.65 0 140 6 6 1501.5 2.3583 34.5167 27.5811 60.5 96.3 0.73 31.6 0.049 34.5169 0 0.710 30.9 6 45.33 0 3.184 0 166.10 0 139 5 5 2000.9 1.9316 34.5868 27.6717 60.5 96.4 1.40 60.7 0.047 34.5893 0 1.382 60.1 0 43.57 0 3.042 0 176.34 0 138 4 4 2501.4 1.7644 34.6224 27.7132 60.5 96.5 1.84 80.0 0.046 34.6211 6 1.836 79.8 0 41.51 6 2.950 6 179.96 6 137 3 3 3000.6 1.6614 34.6427 27.7372 60.3 96.2 2.23 96.8 0.044 34.6407 0 2.246 97.6 0 41.34 0 2.870 0 178.97 0 136 2 2 3000.9 1.6614 34.6428 27.7373 60.3 96.2 2.22 96.6 0.045 34.6422 0 2.248 97.7 0 41.12 0 2.877 0 178.81 0 135 1 1 3275.6 1.6732 34.6449 27.7381 60.3 96.1 2.27 98.5 0.044 -99.0000 0 2.284 99.3 6 41.06 0 2.879 0 178.58 0